23171964 has 24 divisors (see below), whose sum is σ = 54754560. Its totient is φ = 7625904.

The previous prime is 23171959. The next prime is 23171977. The reversal of 23171964 is 46917132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11274 + ... + 13169.

It is an arithmetic number, because the mean of its divisors is an integer number (2281440).

Almost surely, 2^23171964 is an apocalyptic number.

It is an amenable number.

23171964 is an abundant number, since it is smaller than the sum of its proper divisors (31582596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23171964 is a wasteful number, since it uses less digits than its factorization.

23171964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24529 (or 24527 counting only the distinct ones).

The product of its digits is 9072, while the sum is 33.

The square root of 23171964 is about 4813.7266228983. The cubic root of 23171964 is about 285.0936964937.

The spelling of 23171964 in words is "twenty-three million, one hundred seventy-one thousand, nine hundred sixty-four".